EduFarming
Your list · 0हिं

Type at least two letters. Press Esc to close.

↑↓ navigate↵ openTAB cycle filter

Numerical Inequalities · Question 51 of 79

Question 51

MediumOriginal question

Solve ∣x+2∣≤3\lvert x + 2 \rvert \le 3.

Options for question 51

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. ∣u∣≤3\lvert u \rvert \le 3 means −3≤u≤3-3 \le u \le 3: −3≤x+2≤3-3 \le x + 2 \le 3.

  2. Subtract 2: −5≤x≤1-5 \le x \le 1.

Worth noting

−1≤x≤5-1 \le x \le 5 adds 2 instead of subtracting it.

Concept
A modulus inequation with less than
Typical time
90 s
Your time
—
The rule this testsSolving inequations
Practise this chapter →

Ten questions from Numerical Inequalities, at your own pace.

Practise this chapter →

Ten questions from Numerical Inequalities, at your own pace.